Your Top Battery Questions Answered
Thinking about adding a home battery to your solar system? You’re not alone. By the end of 2024, over 185,000 home battery systems had been installed across Australia, reflecting a significant uptick in adoption as more households seek to maximise their solar investment and reduce reliance on the grid.
At Energy At Home, we make it simple. Backed by one of Australia’s leading commercial renewable energy suppliers, and as a NETCC Approved Seller, we’re committed to helping you navigate the solar battery journey with confidence.
Let’s break down five of the most common questions homeowners ask.
1. Is a home battery really worth it for Australian households?
In most cases, yes. A solar battery stores unused solar energy generated during the day, so you can use it in the evening when grid electricity is more expensive. This increases your solar self-consumption, which translates to big savings on your energy bill.
You also get peace of mind during outages. If your battery system includes backup protection, it can keep your lights, fridge, and essential appliances running when the grid is down.
Explore solar battery options tailored to your home →
2. How do I choose the right solar battery size and type?
Choosing the best battery size depends on your household’s electricity use, your solar system size, and your goals. whether that’s backup power, reducing energy bills, or future-proofing for EV charging.
Most homes benefit from a battery between 5–13.5 kWh, but larger homes may require more. Lithium-ion batteries are the most common due to their efficiency, long life, and low maintenance. Our team will help you choose a setup that suits your needs and budget.
3. How will the new battery rebate affect my purchase?
Starting 1 July 2025, home batteries will become significantly more affordable for Australian households. The Federal Government’s new Battery Rebates are set to offer a 30% discount on battery systems up to 50kWh, helping more solar-powered homes tap into the full value of energy storage.
This could mean up to $4,000 in upfront savings on a typical battery bringing high-quality systems within reach for more homeowners. On top of that, households could save up to $1,600 annually on electricity bills, with batteries delivering a major share of that by storing cheap solar energy for use at night.
If you’re planning to install solar or already have it, now’s the time to consider a battery. This long anticipated Rebate don’t just reduce the cost; they accelerate your energy independence. Learn more about the Cheaper Home Batteries Program.
4. What’s the lifespan of a solar battery, and how do warranties work?
A good battery system can last 10 to 15 years, depending on factors like how often it’s charged and discharged, the local climate, and the overall build quality. Most manufacturers offer warranties that cover either a 10-year period or a set number of cycles—often around 6,000 full charge/discharge cycles.
It’s important to understand not just how long a battery might last, but how performance may gradually decline over time. That’s why it’s recommended to focus on systems with proven longevity and clear, upfront warranty terms.
5. Can I install a battery with my existing solar system?
Yes, most homes can retrofit a battery to an existing solar setup. However, your current inverter must be compatible, or it may need to be upgraded to a hybrid inverter.
Our experts conduct an assessment to determine whether you need a new inverter, additional hardware, or if your system is already battery-ready. We’ll design a solution that minimises disruption and maximises value.
Get a quote to find out your perfect fit.